Collective Teacher Efficacy : Top effect size

According to John Hattie’s research in a 2017/2018 ranking, collective teacher efficacy (CTE) has the biggest positive impact on student learning. And the difference is quite large. CTE scored 1.57, with second place (self-reported grades) scoring 1.33, which represents an 18% increase in effect size. Why is this data important? Because this can shape where an educational administrator or policy maker puts their efforts when it comes time for staff professional development (PD). Ultimately we want to enact changes and policies that positively effect student learning. If we take Hattie’s research to be accurate, that CTE is by far the most effective way to increase student gains in the classroom, then we must ask ourselves, how do we increase CTE?

One way to begin is with education/PD. Not all teachers are aware of what CTE is. Collective teacher efficacy is defined as: “the collective belief of teachers in their ability to positively affect students.” Beliefs fall under the intangible core bottom line that at times is difficult to measure. Other bottom lines in education such as fiscal and academic have more quantitative data, money and percentages being much easier to use a traditional barometer. With the intangible core, or the culture of a school it may be much more difficult to put a number on. But now we have a number. 1.57: 18% greater than second place. With that data in mind it may require that we pay more attention to collective teacher efficacy in our schools.

Recently, in our March High School staff meeting at American School in Tegucigalpa we led a short (15 minute) teacher training on CTE that I share with you below in italics:

Objective : Understand the term  ‘collective efficacy’ and share instance/s that you have caused learning since our last faculty meeting.  

Collective Efficacy (4:18-5:07): The collective belief in teachers that they can positively effect student learning.  The believe that “I (the teacher) cause/d learning”.

Collective efficacy currently has highest effect on student learning according to John Hattie.

Group discourse strategy : Mix-Freeze-Pair-Share

  • 1-2 minutes: Write down a time that stands out for you in the last month of an example that you caused student learning.  
  • When signaled, freeze and pair with the nearest person.
  • Share your responses.
  • Mix, freeze and share again
  • * Can be used with music

(Adapted from this source)

Recap: Collective efficacy has the highest effect on student learning. Thank you all for causing learning.

It was rewarding to listen to teachers share successes with each other. Those a-ha moments that teachers live for, when a teacher sees the light go on in a learner’s mind from what they have planned. PD for teachers + sharing successes with one another are two ways to increase CTE. Questions remain regarding how to gauge the level of teacher collective efficacy at your given school. Here is a link to a Collective Efficacy (CE) scale from seminal author Megan Tschannen-Moran’s website that is one way to measure CE at your school.

Given the fact that teacher collective efficacy is the biggest difference maker in student performance it may behoove us as educational leaders to explicitly teach the concept to our staff, give time for our staff to share successes with one another and measure the current state of Teacher Collective Efficacy at our schools.

3 thoughts on “Collective Teacher Efficacy : Top effect size”

  1. Nice. I like this data and I think it is something easy to use at a staff meeting. Thanks for sharing.

    1. George;
      Thank you for responding with this information. It is a great resource use and reflect on as research continue to be introduced adding to the discussion. More importantly, reviewed and evaluated for accuracy.

      Collective Teacher Efficacy is a difficult area to evaluate effectively. We will review the literature more and add to our knowledge. Your sharing of research is very informative and helps add to our knowledge. And corrects inaccurate information we may have.

      All that being said, we do need to correct our understanding of the research on efficacy and self-reported grades. We do acknowledge that more research needs to be completed in these areas and their impact on student learning, especially if they are noted as high level. We need to confirm at what level. I do believe that collective teacher efficacy has significant positive impacts on student learning and school culture. To what extent that actually is, and how it impacts learning, should be researched more extensively with high quality research.

      Thank you for the information and sharing the blog posts. Good information and feedback for us. Cheers.

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